Fits most of the cell phone & other devices, such as Nokia, Motorola, Samsung, Sony Ericsson, Blackberry, PDA, MP3, MP4, digital camera and even USB devices... etc.Designed for use with mobile electronics powered by a single lithium cell.Charging current: 380mA maximum(varies with usage conditions).Enables immediate usage of device. Even if battery is fully depleted.Automatic startup when current drown at output(upon connection to device).Automatic shut down when primary battery is depleted.Open-circuit output vottage 5.6V.Indicator LED.Color : black . If you want to buy other color , please contact us